Modern Combat 4: Zero Hour is a 2012 first-person shooter developed and published by Gameloft Montreal for iOS, Android, Windows Phone 8, BlackBerry 10 and BlackBerry PlayBook. It is the fourth game in the Modern Combat series, and is a sequel to 2009's Modern Combat: Sandstorm, 2010's Modern Combat 2: Black Pegasus and 2011's Modern Combat 3: Fallen Nation. A sequel was released in 2014, Modern Combat 5: Blackout.
The iOS version of Zero Hour supports the iPhone 5. Gameloft released a gameplay teaser on September 25, 2012, along with a new Modern Combat website. The teaser trailer showed high definition graphics, but with some graphical improvements over its predecessors, such as real-time shadows. Other improvements include more "military support" options, more tactical gameplay and more advanced campaign programming.
Source: Wikipedia, "Modern Combat 4: Zero Hour", available under the CC-BY-SA License.